Axial brushless DC motor with fractional and hold step function
US10454403B2 · kind B2 · utility
3Cited by
31References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2017 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | May 16, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An axial brushless DC motor comprising a stator including a plurality of coils, a rotor including a magnet with a plurality of pairs of magnetic poles and adapted for movement relative to the stator in one or more full steps, and a coil phase circuit adapted for moving the rotor relative to the stator a fractional step less than the one or more full steps and/or holding the rotor at the fractional or one or more full steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.